Opticz All Purpose Invisible Blue UV Blacklight Reactive Security Ink (2 Ounce Bottle)
This is that hard to find UV Blacklight Reactive Invisible Ink for hand stamps, box marking, wall decorations, and other unique security applications. Will not wash off easy like other brands, but can be removed with effort. Glows bright BLUE under blacklight. Alcohol based for quick drying. 2oz bottle of all purpose blue invisible blacklight reactive ink This is NOT printer or tattoo ink!
